| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Richwoods R-VII School District | Fletcher | 9/10 Excellent · 86th pct | 151 | 1 | PK–8 | 2 |
| West St. Francois County R-IV School District | Irondale | 8/10 Good · 79th pct | 959 | 3 | PK–12 | 1 |
| Potosi R-III School District | Mineral Point | 8/10 Good · 78th pct | 2,036 | 4 | PK–12 | 2 |
| Kingston K-14 School District | Blackwell | 4/10 Below Average · 31st pct | 833 | 4 | PK–12 | 3 |
| Valley R-VI School District | Belgrade | 2/10 Poor · 14th pct | 348 | 2 | K–12 | 2 |
How Washington County compares
Together they enroll 4,327 students across 14 schools. The largest is Potosi R-III School District with 2,036 students. Districts here average 6.2/10, above the Missouri average of 5.6/10. Ratings range from 2/10 to 9/10.
School Districts in Washington County, Missouri
Washington County has 5 public school districts covering 10 zip codes. The top-rated district in Washington County is Richwoods R-VII School District (9/10). Ratings are based on the share of students proficient in reading and math on state assessments (MAP 2025), ranked against all districts in Missouri. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.
Frequently Asked Questions
How many school districts are in Washington County, MO?
5 school districts serve zip codes in Washington County, MO. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Washington County, MO?
Of the districts serving Washington County, Richwoods R-VII School District has the highest rating on this site at 9/10. That places it in the 86th percentile among Missouri school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Missouri reading and math assessments, ranked against other districts in Missouri and converted to a 1–10 scale. Percentiles compare districts within Missouri only, never across state lines.